package Day1Zuoye;

import java.util.Scanner;

public class CircleTest {
    public static void main(String[] args) {
        Scanner in=new Scanner(System.in);
        System.out.println("输入半径");
        Circle circle=new Circle();
        int x=in.nextInt();
        circle.mianji(x);
        circle.zhouchang(x);
    }
}
